Who took a case to supreme court in 1896 concerning segregation by railroad companies

This refers to the infamous Supreme Court ruling called Plessy v. Ferguson, 163 U.S. 537 (1896).

Explanation:

This ruling upheld racial segregation by the railroad companies and it is considered a big setback on the advances made in giving former slave populations civil rights after the civil war in the United States. This ruling is generally regarded as one of the worst decisions the U.S. Supreme Court has ever made. SCOTUS at that time found that racial segregation policies could be allowed as long as equal quality services were provided to both races. Hence the "separate but equal" idea that shaped public policies towards race in the southern states for decades. It was only with the 1954 case Brown v. Board of Education that the Plessy v. Ferguson case was overruled de facto because the court ruled that "separate but equal" was indeed unconstitutional.

b. the passage of the equal rights amendment  

explanation:

this mean that anything that someone else could do they could do

answer: in 1900, there were no "workplace safety laws"!

explanation: at the beginning of this century, workers in the united states faced remarkably high health and safety risks on the job.

a century ago in 1900 about three hundred out of every one hundred thousand miners were killed on the job each year.

[industria] developments occurred within a legal and regulatory climate that diminished employer’s interest in safety. as a result, americans developed production methods that were both highly productive and often very dangerous.